Re: Image Creation and Saving

[hitek <hitek@xxxxxxx>]

Are you making sure the $_SESSION['user_sn'] folder exists before saving 
the image into it?
I'm asking because I originally thought it was a permission problem but php 
will tell you 'permission denied' if that was the case.


At 05:05 PM 1/29/2005, NathanielGuy#21 wrote:
> Hello everyone,
> I have been troubleshooting a problem with one of my scripts for a
> while now, its purpose is to allow a user to upload a file, save it to
> the server, resize it into a thumbnail, and save the thumbnail as
> well.  In my script all goes well until it comes to saving the images,
> the script throws these errors:
>
> Warning: imagepng(): Unable to open
> '/home/blacknut/public_html/picserv/picserv_mysql/pictures/blacknute/15.png'
> for writing in /home/blacknut/public_html/picserv_mysql/addpic.php on
> line 91
>
> Warning: imagepng(): Unable to open
> '/home/blacknut/public_html/picserv/picserv_mysql/pictures/blacknute/15t.png'
> for writing in /home/blacknut/public_html/picserv_mysql/addpic.php on
> line 95
> Picture "ffq" was added to our database! The following is what we have
> generated and it is what others will see
>
> Here is the important part of the script, if more is needed i can post
> it as well.
>
>         if ($mime_type == 'jpeg') {
>         $new_image = imagecreatefromjpeg($_FILES['new_image']['tmp_name']);
> //Create an image refrence
>         }
>         elseif ($mime_type == 'png') {
>         $new_image = imagecreatefrompng($_FILES['new_image']['tmp_name']);
> //Create an image refrence
>         }
>         elseif ($mime_type == 'gif') {
>         $new_image = imagecreatefromgif($_FILES['new_image']['tmp_name']);
> //Create an image refrence
>         }
>
>   //Image Sizes
>         list($new_image_width, $new_image_height) =
> getimagesize($_FILES['new_image']['tmp_name']);//Get img size
>         if ($new_image_width > $new_image_height) {//Get thumb size
>         $percent_image_size = (200 / $new_image_width);
>         }
>         elseif ($new_image_width < $new_image_height) {
>         $percent_image_size = (200 / $new_image_height);
>         }
>         else {
>         $percent_image_size = (200 / $new_image_height);
>         }
>         $new_thumb_width = ($percent_image_size * $new_image_width);
>         $new_thumb_height = ($percent_image_size * $new_image_height);
>
>         $new_thumb_file = imagecreatetruecolor($new_image_width, 
> $new_image_height);
>   imagepng($new_image,
> '/home/blacknut/public_html/picserv/picserv_mysql/pictures/' .
> strtolower($_SESSION['user_sn']) . '/' . $new_pic_filename . '.png');
> //Copy pic to user dir as pic_id.png
>
>         $new_thumb_image = imagecreatetruecolor($new_thumb_width,
> $new_thumb_height); // Create Thumb file
>         imagecopyresampled($new_thumb_image, $new_image, 0, 0, 0, 0,
> $new_thumb_width, $new_thumb_height, $new_image_width,
> $new_image_height); //Copy resized to new thumb file
>         imagepng($new_thumb_image,
> '/home/blacknut/public_html/picserv/picserv_mysql/pictures/' .
> strtolower($_SESSION['user_sn']) . '/' . $new_pic_filename . 't.png');
> //Save image thumb
>
> I am very new to file/image manipulation in php so if you see any
> errors, or unnecessary code please tell me.  I'm not quit sure how
> everything works, although I do have a theoretical picture of how it
> does.  Any comments will be appreciated.
>
> --nathan
>
> --
> http://www.blacknute.com/
>
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